I am integrating ticket in joomla 3.5.1 using os ticket and os_sticky bridge but it is not supporting knowledge base and escalation system . Escalation system like: suppose 6 admins administers 5 products where one ticket by a customer is registered to admin 'A' after 48 hrs that was responded and escalated to admin 'B', and the same after 48 hrs escalated to 'C' and so on . Finally escalated to 'Super Admin'. And Super Admin assigns to any admin to solve this issue. Is there any ticket system available escalation system?